/*
 * Copyright 2017-2020 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.cloud.services.common.security.jwt;

import java.security.Principal;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import org.activiti.api.runtime.shared.security.PrincipalRolesProvider;
import org.springframework.lang.NonNull;

public class JwtPrincipalRolesProviderChain implements PrincipalRolesProvider {

    private final List<PrincipalRolesProvider> providers;

    public JwtPrincipalRolesProviderChain(@NonNull List<PrincipalRolesProvider> providers) {
        this.providers = Collections.unmodifiableList(providers);
    }

    @Override
    public List<String> getRoles(@NonNull Principal principal) {
        return providers
            .stream()
            .map(provider -> provider.getRoles(principal))
            .filter(Objects::nonNull)
            .findFirst()
            .orElseThrow(this::securityException);
    }

    protected SecurityException securityException() {
        return new SecurityException("Invalid principal security access token roles");
    }
}
